On Sun, 15 Nov 2009 22:23:28 +0100 mobi phil <m...@mobiphil.com> wrote:
> Maybe I am missing some details of X11, but I think some GPU commands > could be made async? or? > > probably on normal pc desktop it is not an issue "the cpu has to wait > for the gpu", but what you are describing should not be a generic > solution for the dri architecture? In an ideal world, all graphics operations would be sent to the GPU in a "fire and forget" manner as you describe. In practice, things aren't so nice. Even "proper" graphics cards need this kind of synchronisation quite often because they can't accelerate every single operation required. In fact, EXA doesn't present a very large set of operations to the driver for acceleration. At this low a level, it becomes quite hard to make things generic. The implementation for Glamo is actually based on the method used in the latest version of the Radeon driver. It's every bit as much of a concern for the AMD, Intel and Nouveau people... Tom -- Thomas White <t...@bitwiz.org.uk> _______________________________________________ devel mailing list devel@lists.openmoko.org https://lists.openmoko.org/mailman/listinfo/devel
